In March, the weather in Niagara Falls is typically cold. Average daily high temperature in March is about 4 degrees above zero. On average, Niagara Falls has 16 cloudy, 10 rainy, 4 sunny, and 1 partly cloudy day in March. The rains are usually moderate. March as well as April, October, November, and December is considered the most uncomfortable time to visit Niagara Falls.